Radeon R9 M280X and GeForce GT 645M - video card comparison
Passmark - benchmark score Radeon R9 M280X vs GeForce GT 645M
Radeon R9 M280X
837
GeForce GT 645M
957
Radeon R9 M280X
GeForce GT 645M
Architecture
GCN (2011−2017)
Kepler (2012−2018)
GPU code name
Saturn XT
N13P-GS
Market segment
Laptop
Laptop
Release date
February 2015
March 2012
Bus support
Not Listed
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Core clock speed
900 MHz
Up to 710 MHz
CUDA cores
-
384
Floating-point performance
1,792 gflops
544.5 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,080 million
1,270 million
Pipelines / CUDA cores
896
384
Power consumption (TDP)
-
32 Watt
Texture fill rate
61.60
22.7 billion/sec
Memory type
Not Listed
DDR3\GDDR5
Maximum RAM amount
0 MB
2 GB
Memory bus width
Not Listed
128bit
Memory clock speed
-
1800 MHz
Memory bandwidth
96 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
DirectX® 11
12 API
CUDA
-
+
Mantle
+
-
OpenCL
Not Listed
1.1
OpenGL
4.4
4.5
Shader Model
6.3
5.1
Vulkan
-
1.1.126
3D Blu-Ray
-
+
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
Optimus
-
+
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-